Pivot-light.



P. B. DONAHOO. PIVOT LIGHT. APPLICATION FILED JUNE 19, 1909.

967,620. Patented Aug. 16; 1910.

attorney UNITED s'rn'rns PATENT OFFICE.

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Specification of Letters Patent. Patented Aug. 16, 1910- Lpplioationfiled June 19, 1909. Serial No. 503,177.

To all whom it may concern: 7

Be it known that I, PETER B. DONAHOO, citizen of the United States,residing at Oakland, in the. county of Alamedaand State of California,have invented certain new and useful Improvements in Pivot- Lights, ofwhich the following is a specificatlon, reference being had therein tothe accompanying drawing. 1

This invention relates to headlights for motor or othervehicles, and theprincipal object of the same is to provide a connection between oneheadlight and the turning gear of a vehicle so that said light will becaused to turn with said gear.

The invention is especially adapted for use. in, connection with motorvehicles in which the headlights are arranged on each side of the frontof the machine, and the present invention contemplates the employment ofa flexible shaft one end of which is connected'to' one of the knucklebearings. of one of the steering wheels, the other end of said shaftbeing connected with & pivotally mounted headllght, so that themovements of said knuckle will be imparted to said light to cause thesame to turn with the steer ing wheels. i

In connection with the foregoing, the in vention also contemplates theemployment of a connecting rod between the two head lights so that themovement of the light that is connected with the knuckle'will becommunicated to the lamp on the opposite side of the vehicle.

It will be understood, of course,.that' in carrying generally statedabove the essential features of the same are necessarilysusceptible ofchanges in details and structural arrangements, but a preferred andpractical embodi e accompanying h 1 has its opposite ment thereof-isshown in t drawings, wherein-- Figure 1 is a detail front elevation of aportion of the front of a motor vehicle showing the improvedheadlightoperating mechanism applied thereto. Fig. 2 is a fragmentary view inelevation, partly in section showing the lamp frame or support, itspivotal mounting, and the connection between the same and the operatingshaft.

Referring to said accompanying drawings by numerals, 1 designatesthefront portion of the body of a motor vehicle, 2 the front axle thereofprovided with the forked end 3 a centrally located pendent out theobjects of the invention 1 of the lamp' carrying fork in which theknuckle bearing 4 is journaled and which projects from the hub 5 of oneof the front-wheels 6. The upper end of the knuckle bearing 4 projectsthrough the fork 3 and forms a socket 7 for the reception of one end ofa flexible shaft 8 which is detachably held within said socket by meansof a thumb screw 9.

A bracket 10 is rigidly connected with the side of the body of thevehicle. and carries an outstanding vertically arranged bearing 11 .fora pivot pin 12 which may be rotatably held in said hearing by means of athumb screw 13. The upper end of said pin projects beyond the'upper endof the bearing 11 and is arranged at right angles to said pin to providean arm 14. The outer end of said arm-terminates in an upstanding bcaringring 15 the top surface of which is provided with a groove 16'for thereception of anti-friction bearings 17 A head light 18 is pivotallymounted in a vfork 19 the enlarged base 20 of which is pro vided with apendent annular bottom flange 21 which fits over the to of the bearingring 15, said base being a so provided with pin 22 which projectsthrough the bearing ring 15 and has a longitudinal opening 23 formed inits lower end which forms a socket for the re ception of the upper endof the flexible shaft 8, said'shaft being detachably held within saidsocket by means of the thumb screw 24. The bottom surface of the base20of the lamp fork is provided with an annular groove 25 complemental tothe roove .16 formed in the bearing ring, said grooves forming a racewayfor the antifriction bearings. The front of said base 20 carries. anoutstandin laterally projecting lug 26 which is engage by the bifurcatedend 27 of a rod 28,.that extendsacross the front of the machine and endconnected with a base of .a lamp sup orting fork located on the oppositeside 0 the machine, not shown.

It will be seen-from the foregoing that when the knuckle 4 is turned itsmovements will be imparted to the shaft 8, and said shaft will impartsuch movement to the base 19 so as to cause the lamp 18 to turn withsaid knuckle. And as'saidbase is connected with the lamp carrier on theop osite side of the machine, the last mentions lamp1 will move with thefirst mentioned lamp, t ereby assuring of both lamps throwing theirlight in the direction in which the'machine is being steered. It willalso be understood from the described the lamp 18, the slightestmovement of t e shaft 8 will be communicated thereto, and through theuse of the flexible shaft, the vibration of the steering gear will, beabsorbed by said shaft,-so that none of such vibrations will becommunicated to the headlight.

What I claim as my invention is 1. A device of the character described,comprising a lamp bracket carried by a vehicle, an arm mounted thereonand provided with a bearing ring in its outer end, the upper surface ofwhich is provided with manner of mounting anthfriction bearingsnalanipsupport havin a base mounted upon sa1d ring and provide with a inrojecting through said ring, and aflexib e s aft having one endconnected to the turning gear of the vehicle and the other end connectedwith said 'pin.

2. A'device of the character described,

comprlslng a lam bracket carried by a vehicle, and provi ed with asocket bearing, an arm provided with a pivot in adapted to be detachablysecured in said socket, said arm also provided with an upstanding bearinring, a lamp su port having a base provi ed with an annu lar flangeadapted to be fitted over the top of said bearing ring and rotatablmounted thereon, said base also provide with a pendent pin adapted to berotatably mounted in said ring, said in provided with a socket in itsfree end and a flexible shaft having one end ada ted to be connected tothe turning gear of t e vehicle and the other end adapted to be rigidlyseated in the socket opening of the pm of the lamp support.

In testimony whereof I hereunto aflixmy signature in presence of twowitnesses.

PETER B. DONAHOO. Witnesses:

'F. P. SOHROEDER, H. G. ScHRoEDER.

